/**
 * Copyright 2010 Philippe Beaudoin
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.puzzlebazar.client.ui;

import com.google.gwt.core.client.GWT;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiFactory;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.HTMLPanel;
import com.google.gwt.user.client.ui.Widget;
import com.google.inject.Inject;
import com.puzzlebazar.client.resources.Resources;

/**
 * A centered message box containing a one-line message.
 *
 * @author Philippe Beaudoin
 */
public class ShortMessageBox extends Composite {

  interface Binder extends UiBinder<Widget, ShortMessageBox> { }
  private static final Binder binder = GWT.create(Binder.class);

  @Inject
  static Resources resources;

  @UiField
  HTMLPanel messageBox;

  @UiField
  FlowPanel messageWidgetContainer;

  public ShortMessageBox() {
    super();
    initWidget(binder.createAndBindUi(this));
    clearMessageWidget();
  }

  @UiFactory
  public static Resources getResources() {
    return resources;
  }

  public void setMessageWidget(Widget widget) {
    if (widget == null) {
      clearMessageWidget();
    } else {
      messageWidgetContainer.clear();
      messageWidgetContainer.add(widget);
      messageBox.setVisible(true);
    }
  }

  public void clearMessageWidget() {
    messageWidgetContainer.clear();
    messageBox.setVisible(false);
  }
}
